Add shutdown widget.

src/device/DmsAsyncAction.cpp

@@ -18,6 +18,7 @@ DmsAsyncAction::DmsAsyncAction(int aServerId, int aActionId, QObject* aObject, c
     , mSendData()
 {
     mTimer->setSingleShot(true);
+    mTimer->setInterval(TIMEOUT_MSEC);
     connect(mTimer, &QTimer::timeout, this, &DmsAsyncAction::sendTimeoutSignal);
     connect(mObject, ("2" + mResponseSignal).toStdString().c_str(), mTimer, SLOT(stop()));
 }
@@ -36,7 +37,7 @@ bool DmsAsyncAction::execute()
     {
         return false;
     }
-    mTimer->start(TIMEOUT_MSEC);
+    mTimer->start();
     return true;
 }
 
@@ -44,3 +45,8 @@ void DmsAsyncAction::sendTimeoutSignal()
 {
     emit timeout();
 }
+
+void DmsAsyncAction::setTimeoutInterval(int aMsec)
+{
+    mTimer->setInterval(aMsec);
+}